Cutter-head.



E. S. SHIMER.

CUTTER HEAD.

APPLICATION FILED numzs, l9l4.

Patented June 8, 1915.

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UNITED STATES PATENT OFFICE:

ELMER S. SHIMER, OF MILTON, PENNSYLVANIA, ASSIGNOR TO SAMUEL J. SHIMER & SONS, 0F IVIILTON, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

CUTTER-HEAD.

Application filed August 25, 1914.

To (ZZZ 1071 am it may concern:

Be it known that I, Emma S. Snnrnn, citizen of the United States, residing at Milton, in county of Northumberland and State of Pennsylvania, have invented certain new and useful Improvements in CutterHeads, of which the following is a specification.

This invention relates to an improvement in cutter heads, and relates to that class commonly used on a shaper or variety molder machine, though its design can be utilized for other larger and heavier matching and molding machines.

The object is to provide a block say of cast iron, turned and formed to nearly the pattern of the mold to be made, and slightly thicker and heavier than the width of the knives that are fastened therein, so that the knives do not project out of or above the head.

A further object is to so devise the head that the knives will be located within the head in such a manner that in the event that the hands or fingers of the operator should strike the cutter or block, while in motion, it would receive a number of chafing cuts, but would never have what was formerly known as ugly gashes, for when the hand strikes the cutter, or knife unprotected, it has a tendency to draw the hand into the cutter and mangles the whole hand lefore the operator is aware that an accident has occurred.

The invention relates to still other novel features of construction and combinations of parts which will be hereinafter more fully described and pointed out in the claims.

In the accompanying drawings: Figure 1 is a top plan view; Fig. 2 is a sectional view on the line 2-2 of Fig. 1; Fig. 3 is a sectional view on the line 3-3 of Fig. 1.

A represents the head or block, which is turned and formed on the side thereof to nearly the pattern of the mold to be made. Slots 2, 2 are formed in the block A, and extend from side to side, and parallel to each other. A vertical hole 3 is formed in the head or block for a spindle (not shown), and holes 4, 4 are formed in the head or block and intersect the slots 2, 2, so that an opening is formed through the bottom of the slots. Mortised bolts 5, 5 are received in these holes 4, 4. Received in the mortise 6 of the bolts 5 are bits 7, which project beyond the head sufiiciently to produce the op Specification of Letters Patent.

Patented June 8, 1915.

Serial No. 858,500.

eration. These bolts 6 are fastened to the block by means of nuts 8, S, for drawing the bits against the lower portion of the block for fastening the bits in place. Located within the peripheral edge of the block is a tapered hole 9. These holes are located in proximity to the slots 2 in which the chips are received when the head is in motion, and as the cutter cuts the chips they fly into this opening in front of the knife and clear themselves by flying out at the top of the tapered hole. The object of placing this tapered hole in such a manner is to provide at the periphery of the head as much of the metal of the head possible. It will be seen that in the event that the hands or finshould strike this cutter while in motion it would receive a number of chafing cuts, but would never receive any ugly gashes.

From the foregoing, it will be observed that the large upper surface is produced for the purpose of protecting the hands of the operator by extending over an area which is practically as wide as the distance between the cutting edges of the bits, so that only a small portion of the bit is presented, which can come in contact with the hand of the operator. Furthermore, the heads of the bolts are sunk beneath the surface of the head, and only th walls of the slots and openings are exposed, which would only cause a chafing of the band, should it be drawn into conact with the head or block.

I claim:

1. Tn a cutter head, the combination with a block provided with slots extending through the side, of bits received in the slots. means for fastening the bits in the slots and to the head so that said bits and fastening means will be below the top of the head providing an unobstructed surface. said head having the peripheral edge thereof projecting over an area practically as wide as the distance between the cutting edges of the bits to protect the hands of the operator.

Tn a cutter head, the combination with a block provided with slots formed in the top thereof and extending through the side, of bits received in the slots, said block provided with holes intersecting the slots, mortised bolts received in. the holes, said bits received in the mortises of the bolts, means for fastening the bolts to the block for causing the bolts and bits to be drawn below the edges of the bits to protect the hands of the 10 top of the block and produce an obstructed operator.

surface at the top of the block, said head In testimony whereof I afliX my signaprovided with taperifng laole; Within the petnre, in the presence of tWo Witnesses.

ri)hera1 edge thereo an a jacent the slots w s v fo r receiving and discharging the chips LLMER bHIMER' from the block, and the periphery of the \Vitnesses:

block projecting over an area practically as L. K. ETTINGER,

wide as the distance between the cutting S. J. SHIMER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. O. 

